Solving for the Variable

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GED Math › Solving for the Variable

Questions 31 - 40
31

Which of the following makes this equation true:

Explanation

To answer the question, we will solve for a. We get

32

Solve for x:

Explanation

Distribute the two with both of the terms inside the binomial.

Add 6 on both sides.

Divide by 2 on both sides.

The answer is:

33

Solve for :

Explanation

Subtract five from both sides.

Divide by three on both sides.

The answer is:

34

Which of the following makes this equation true:

Explanation

To answer the question, we will solve for y. We get

35

Solve the inequality for :

Explanation

- note the switch in the inequality symbol

That is, .

36

Solve for :

Explanation

Note that the inequality symbol changes.

or, in interval notation, .

37

Solve for :

Explanation

Add on both sides.

Subtract 1 from both sides.

Divide by 17 on both sides.

The answer is:

38

What is the value of in the equation ?

Explanation

Start by adding to both sides.

Square both sides of the equation to get rid of the square root.

Subtract from both sides.

Divide both sides by .

39

Which of the following makes this equation true:

Explanation

To answer this, we will solve for y. So, we get

40

Solve for :

None of the other answers

Explanation

In order to solve for , all you have to do is simplify your equation so that your is on one side and your number is on the other.

For this equation, we have one number accompanying our . That is : .

Let's move that over to the other side by adding it on both sides.

Now that all of our numbers are on one side, it's time to simplify. Multiplication comes before addition, so we need to multiply the and together before we touch the .

Now we can add the to .

Our answer is

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